Design and simulation of continuous scintillator with pixellated photodetector

Authors

G. J. Takacs, University of WollongongFollow
Anatoly B. Rosenfeld, University of WollongongFollow
M. L. Lerch, University of WollongongFollow

RIS ID

5931

Publication Details

This article was originally published as: Takacs, G, Rosenfeld, A & Lerch, MLF, Design and Simulation of Continuous Scintillator with Pixellated Photodetector, IEEE Transactions on Nuclear Science, August 2001, 48(4)2, 1412-1417. Copyright IEEE 2001.

Abstract

Presents results of simulations performed as part of the development of a gamma-ray detector module comprising a nonpixellated scintillator and pixellated photodiode detector. The simulations have been carried out to determine the effect of surface treatment and dimensions of the scintillator on the ability to determine the two-dimensional position of interaction. A set of 32 different combinations of surface treatments have been considered for each crystal size. Scintillator dimensions considered have been 25×25×(3-6 mm3). For scintillator thicknesses at the low end of this range, an average accuracy of 0.5-0.6 mm is achievable for many different surface treatments. At the higher end of the thickness range, 6 mm, the average accuracy reduces to around 0.7 mm and is more dependent on the surface treatment.